Safety razor



Jan. 22, 1946. A. H. LYoNs SAFETY RAZOR Filed'Jn. 29, 1945` @Veff ATTO RN EYS Patente'd Jan. 22, 19.46

i al; 2,393,391

SFEH RAZOR IArchieHY.' Lyons, Modesto, Calif.

Y This inventionrelates in general to an improved safety razor of the type which includes a pair vof cooperating head members adaptedto clamp a doubleedged razor blade therebetw,een; :therhead members being vdetachablyV secured together .by acentral threaded'stud; on one member fprojecting through the other member, Vand kon. Wlch stud the handle is screwed, whereby to maintain said head members in clampingengagement with the blade.

It. has been found in practice that if the ofthe above typeof safety razor `is adjustedso that such handle is not fullyadvanced'andgso that the head members are not clamped together as tightly as possible, the double edged blade between such head members will shave,the,face much closer. This is for the reason that the blade, whichisbowed between the head members, has 'a lesser 'bow imparted thereto-than would be the case if said head members were fully clamped, v

and as a result the relative cutting angle of ytlrie blacleis` increased, which produces a closer shave.

However, the handle when so adjusted frequently fails to stay in place and loosens. It is therefore an object of this invention to provide, Vin a razor of the type described, manuallycontrolled locking means between the turnable handle and adjacent head member whereby the handle of the razor assembly can be locked in any selected position of adjustment.

A further object of this invention is to provide a safety razor assembly, as in the preceding paragraph, in which said locking means comprises a slidably mounted pin on the handle, a row of pin receiving sockets formed in the adjacent head member concentric to the stud, and a hand actuated element on the handle adapted to control advancing or retraction of said pin relative to said row of sockets.

A further object of the invention is to provide a simple and inexpensive device, and yet one Awhich will be exceedingly effective for the purpose for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawing:

Figure 1 is a sectional elevation, enlarged, of a safety razor embodying the present invention.

Figure 2 is a plan view of the razor with the handle detached, showing the concentric row of pin receiving sockets as formed in the top head member.

Referring now more particularly to the charhaving an elongated pin site edgesy thereof, rows the corresponding edge vthe membery '2; the stud extendingsome v.end with an 'urges the latter downagainst the plunger actors ofreference on', lthe drawing, the grazor is generally of conventional type and includes -a bottom head member I having a top head member 2 ;;the top head member havingn along oppo- QSDaeed teeth 3, said teeth projectinglaterally outwardly beyond of the bottom head mem- A central,v threaded stud 4 is formed on tand projects through a the. top. headfmember distance beyond said ber I,

corresponding opening 5 in AnI 'elongated handle iomied atitslower axiallrzoperne tapped bore liuto which the stud 4 is. adapted tobe screwed: `When with, the v top, surface of headmember--` 2 and toward the bottom head member l. A double edged bladeengagedvover thestud t, is thus clampedbetween,saidfrncrobers.` It willbe seenthatfif handle-.Q isnot headmemher 2 as far as possible, the blade 8 will not be clamped between Said head members as tightly as would otherwise be possible. The blade, which is normally bowed between said members on account of adjacent convexe-concave faces, thus has a lesser bow imparted thereto, which increases the cutting angle between the sharpened opposite edges of the blade 8 and the adjacent guard teeth 3, which produces a closer shave.

However, itis sometimes difficult to use a safety razor with the handle 6 set in a position of adjustment less than full advance, for the reason that the handle tends to loosen and back oif from the adjusted position. To prevent this I provide the following locking mechanism, and which is the essence of the present invention:

The handle 6 is formed with a longitudinal bore 9 therethrough from end to end, said bore II) slidable therein, the lower end of the pin'being rounded and adapted to seat, selectively, in any one of a circular row of sockets II formed in the upper surface of the top head member 2 in concentric relation about the stud 4.

The fupper end portion larged to form a plunger I2. The bore 9 is enlarged to slidably receive said plunger I2 Iwith the enlargement extending some distance below the lower end of the plunger. A loaded compression spring I3 surrounds the pin I0 between the I2 and a shoulder I4 at the lower end of the enlarged portion of the bore 9. The spring I3 tends to retract the pin I0 from the sockets II.

the handleV is. screwed the stud l it engages of the pin III is en- At its upper end the plunger I2 is rounded, as at I5, and extends out of the corresponding end of the handle 6, there being a screw cap I6 threaded on the upper end of said handle and engaging the rounded upper end I of the plunger I2 It will be seen that the screw cap I6 may be rotated in one direction or the other to cause advance or retraction of the pin I0 relative to the socketsll.;` -3

Wheny the razoris being assembledfor use the cap I6 is unscrewed to such point that the pin IllY does not project below the lower end of thek handle. The razor is then assembled, andthe handle screwed onto the stud 4 to the extent desired. Thereafter the cap I6 is screwed down so;

as to advance the pin III into the adjacent one of the sockets II, which thus'effectively locks the handle 6 against rotation. With the handle thus locked in position the razor assembly 'is maintained with` the blade 8 set at the desired cutting` angle. f f

From the foregoing description it'will be readily seen that there has been produced such a device as substantially fullls the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device,

still in practice such deviations from such deengage the blade therebetween, and means to re- 2,393,391 I f if;

leasably lock the handle against unscrewing from the stud; said locking means comprising a pin slidably mounted on the handle and adapted to project below the lower end thereof, the adjacent heed member having a row of sockets therein concentric to the stud and into which sockets said pin is adapted to selectively engage, and means to advance said pin into one of said sockets and to maintain the pin so advanced.

2. A safety razor comprising a pair of cooperating headmembers adapted'to Vclamp a doubleedged blade therebetween, a central, threaded ,stud on one member projecting through the other member, a handle screwed onto said stud whereby` to secure said members together and clampingly engage the blade therebetween, a pin slid- K ably extending longitudinally through the handle pin.

from end to 'end thereof, means on the handle tending. to retract said pin relative to the lower end of the hand1e and means on the handle manually operative to'cause projection ofsaid pin from said lower 'end of the handle; the adjacent head `member having a rowv of sockets concentric to the stud; the pin when advanced and projecting from the lower end of the handle being adapted to engage selectively in one of said sockets whereby to lock the handle against rotation relative to the stud. f A

3. A device'as in claim 2 in which said rst named means comprises a spring, and said last 'named means comprises a screw cap threaded on. the' outer end of the handle and engaging the adjacent end-of the pin.

v4. A device as in` claim 2 in which said first named means comprises a compression spring surrounding the pin within the handle and engaged between a shoulder on the pin and a shoulder in said handle said last named means comprising a screw cap threaded on the outer end of the handle and engaging the adjacent end of the H. LYONS. 

